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Allen-Bradley 1794-APB PROFIBUS Adapter Module

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Allen-Bradley 1794-APB PROFIBUS Adapter Module Overview

Core Technical Specifications

  • Brand: Allen-Bradley
  • Model: 1794-APB
  • Type: PROFIBUS DP Communication Adapter
  • Input Voltage: 24 VDC nominal with a 19.2-31.2 VDC range
  • Protocol: PROFIBUS DP
  • Max Speed: Up to 12.0 Mbps
  • I/O Capacity: Controls up to 8 Flex I/O modules
  • Communication Port: One 9-pin D-Shell connector
  • FlexBus Current: 640 mA maximum at 5 VDC
  • Isolation: 850 VDC between user power and FlexBus
  • Power Draw: 400 mA maximum from the 24VDC supply
  • Operating Temp: 0 to 55 °C (32 to 131 °F)

Installation & Environmental Ratings

  • Mounting: DIN rail or panel mount (Kit: 1794-NMI)
  • Note: Use a highly conductive DIN rail for proper system grounding.
  • Warning: Avoid rails made from poorly conducting or corrosive materials.
  • Storage Temp: -40 to 85 °C (-40 to 185 °F)
  • Power Dissipation: 7.68 Watts maximum at 19.2 VDC
  • Dimensions: Approximately 3.7 x 3.6 x 3.4 inches.

Diagnostic LED Indicators

  • STATUS LED (Red/Green): Shows the module's operational health.
  • PROFIBUS LED (Red/Green): Indicates network activity and link status.
  • Normal Operation: Both LEDs display a steady green light.
  • Fault Condition: The LEDs will show a red light to signal an issue.

Frequently Asked Questions (FAQ)

  • Q: Is the 1794-APB adapter brand new and genuine?
    A: Yes, we supply only 100% brand new, original Allen-Bradley equipment.
  • Q: How many I/O modules can this adapter support?
    A: The 1794-APB can support the installation of up to 8 Flex I/O modules on its backplane.
  • Q: What is the operating voltage range for this module?
    A: It operates on 24VDC nominal, with a safe input range from 19.2 to 31.2 VDC.
  • Q: What PROFIBUS communication speeds does it support?
    A: It supports all standard PROFIBUS DP rates up to the maximum of 12.0 Mbps.
  • Q: How do I monitor the status of the module?
    A: Use the two diagnostic LEDs. A green STATUS light means normal operation, and a green PROFIBUS light indicates good network communication.
  • Q: How quickly will my order ship?
    A: We process and ship orders within 5 business days via reliable carriers like DHL, FedEx, or UPS.

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Original Source: https://www.nex-auto.com/
Contact: sales@nex-auto.com | Phone: +86 153 9242 9628

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